In a standard post-combustion carbon capture (PCC) process, the regeneration energy of CO₂ lean solvent constitutes the majority of overall energy consumption. The energy reduction achieved by advanced stripper configurations, such as the cold-split bypass (CSB), interheated (IH) stripper, and lean vapor compression (LVC), have been reported in relevant literature. Energy-saving performance may be enhanced by combining the different modifications. In this study, the energy-saving mechanism for advanced stripper configurations was investigated using a standard amine-based process, in which 30 wt% monoethanolamine (MEA) aqueous solution was applied. Contrary to the literature reviewed, the energy-saving performance attained by combining the different modifications was limited. This was due to the major contribution of energy reduction in the various modifications sharing the similar mechanism. In addition, this study demonstrated that the overall energy required, as needed by the heat recovery in the cross-flow heat exchanger (HX) and the reboiler duty, is dominated by overhead vapor generation. Reducing the amount of vapor generated may effectively relieve the overall energy burden. Thus, when energy reduction is reliant on a HX with a poor heat recovery system, the energy-saving purpose is not fulfilled. Therefore, a successful energy-saving design may significantly reduce the amount of vapor generated, whilst maintaining a reliable heat recovery.

在标准的燃烧后碳捕集（PCC）过程中，CO ₂的再生能量贫溶剂占总能耗的大部分。在相关文献中已经报道了通过先进的汽提塔配置（例如冷裂旁路（CSB），中间式（IH）汽提塔和稀蒸汽压缩（LVC））实现的能耗降低。通过组合不同的修改可以提高节能性能。在这项研究中，使用标准的基于胺的工艺研究了先进的汽提塔配置的节能机理，其中应用了30 wt％的单乙醇胺（MEA）水溶液。与所审查的文献相反，通过组合不同的修改获得的节能性能受到限制。这是由于在共享相似机制的各种修改中，节能的主要贡献。此外，这项研究表明，横流热交换器（HX）中的热量回收和再沸器负荷所需的总能量主要由塔顶蒸气的产生决定。减少产生的蒸气量可以有效地减轻总体能量负担。因此，当能量减少依赖于热回收系统差的HX时，不能实现节能目的。因此，成功的节能设计可以显着减少产生的蒸汽量，同时保持可靠的热量回收。当依靠低热回收系统的HX进行节能降耗时，就无法实现节能目的。因此，成功的节能设计可以显着减少产生的蒸汽量，同时保持可靠的热量回收。当依靠低热回收系统的HX进行节能降耗时，就无法实现节能目的。因此，成功的节能设计可以显着减少产生的蒸汽量，同时保持可靠的热量回收。